Home / 2,423.73-3,344.31-1,428.47

Finding the Fourth Proportional to 2,423.73, 3,344.31 and 1,428.47

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Solution

The fourth proportional to 2,423.73, 3,344.31 and 1,428.47 is: 1,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.73 : 3,344.31 = 1,428.47 : x
  2. Step 2: Convert to fraction form
    2,423.73/3,344.31 = 1,428.47/x
  3. Step 3: Cross multiply
    2,423.73x = 3,344.31 × 1,428.47
  4. Step 4: Simplify right side
    2,423.73x = 4,777,229.78
  5. Step 5: Solve for x
    x = 4,777,229.78/2,423.73
  6. Step 6: Final answer
    x = 1,971.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.